Well 2 years ago I tried stopping a deer that was walking by at a fast trot, probably less than 10 yards away. It jumped about 10 feet in the air and ran about as fast as a cheetah away from me, needless to say I did not get a shot off and was left saying to myself why theheck didn't I just put the pin on him shoot and follow through...

I believe that same year I watched a buck come by me about 20 yards away, but it was way too dark at the time. That buck (at a slow trot), kicked a small brush pile, making noise, and scared himself bad enough to jump up and run for 10-20 yards or so.

So I will not be stopping deer anytime soon, not saying that is the right way, just my way, I would rather shoot at a deer that isn't on alert. Deer being the way they are (paranoid), there probably isn't a right answer that works 100% all of the time.